62results about How to "Increase the protective area" patented technology

The invention relates to the technical field of anti-collision buffer vehicles, in particular to an anti-collision buffer device of an anti-collision buffer vehicle, which mainly comprises a protective pad box, the front end of the protective pad box is connected with a rear protective plate, the front end of the rear protective plate is connected with an adjusting mounting frame, and the rear end of the protective pad box is provided with a contact baffle. And the side extension protection assemblies are arranged on the left side and the right side of the contact baffle, each side extension protection assembly comprises a rotary connecting rod, a protection inner plate is arranged on the inner side of each rotary connecting rod, and a protection outer plate is arranged on the inner side of each protection inner plate. According to the anti-collision buffering device of the anti-collision buffering vehicle, when the anti-collision buffering device is subjected to collision buffering, a push plate is driven to extrude a protection inner plate towards the two sides to be expanded, a protection outer plate is popped out through elastic force on the inner side of the protection inner plate, the protection area is further increased, and therefore the protection area can be increased in the using process; and the practicability and the safety of the buffer equipment are improved.

The invention belongs to the technical field of tunnel vault supporting, and particularly relates to a vault supporting device for reinforcing a hydraulic engineering tunnel. Comprising two supporting mechanisms symmetrically arranged along the radian of a tunnel. The supporting mechanism comprises a jacking assembly, an adjusting assembly and a bearing connecting assembly. The jacking assembly comprises a supporting pipe and an arc-shaped supporting plate. The two ends of the arc-shaped supporting plate are slidably connected with a rectangular connecting plate and an arc-shaped connecting plate. The rotating angles of the arc-shaped connecting plate and the arc-shaped supporting plate are controlled through the supporting pipe, so that adjustment is carried out according to the radian of the tunnel vault, the arc-shaped connecting plate and the arc-shaped supporting plate are attached, and the supporting effect is improved; the rectangular connecting plate is controlled to extend out through the bearing connecting assembly, so that top sealing is facilitated; and the rectangular connecting blocks on the two sides are connected, so that the middle part is prevented from being broken due to overlarge weight, and the connecting effect is improved.

The invention discloses a PI (polyimide) screen anti-piercing method which comprises the following steps: S1, firstly, leading a screen raw material needing to be produced into a corresponding mold for heating, melting the raw material in a mold cavity for molding, after standing for a period of time, opening the mold, taking out the molded screen, and taking out the molded screen; the screen printing plate is taken out, the taken-out screen printing plate is put into cold water to be cooled, the surface of the screen printing plate is washed through corresponding cleaning equipment, burr grinding treatment is conducted on the cleaned surface, and surface drying can be conducted through drying equipment after grinding is completed. The protection area of a non-pattern area of the PI film can be effectively increased, the service life of the screen printing plate can be effectively prolonged due to the fact that the anti-puncturing leakage film is integrated, and the problem that printing is affected due to the fact that the distance between the anti-puncturing leakage film and lines cannot be well mastered through pure manual pasting and the lines are too close to the lines or the lines are covered is solved. And defects of printed products and waste of printing materials are effectively reduced.

The present invention belongs to the technical field of lightning prevention and control, and discloses a lightning arrester and a lightning protection device using the positioning pin. By arranging a collector wheel around the upper needle rod and arranging an adjustable capacitor below, the lightning arrester eliminates corona, can form a sufficiently long upward leader discharge, actively search for lightning and eliminate it, expand the protection range of the lightning arrester, reduce the damage of lightning strikes to buildings and electrical equipment, and is particularly suitable for application in summer lightning protection scenarios of various high-rise buildings.

The invention discloses a blasting drilling device and a method thereof, comprising a frame, a moving frame is symmetrically installed at the bottom end of the frame, a top frame is symmetrically installed at the top end of the frame, the top frame is arranged in an L shape, a horizontal platform is arranged above the frame, the horizontal platform is located below the upper bottom wall of the top frame, a vertical rod is installed between the upper bottom wall of the top frame and the top wall of the frame, the vertical rod is slidably connected to the horizontal platform, a screw is rotatably installed between the top frame and the frame, the screw is threadedly connected to the horizontal platform, the top end of the screw is fixedly connected to the output shaft of a second motor, and the second motor is fixedly installed on the top end of the top frame; during work, the invention can block splashing stones generated in the process of drilling holes by the embedded drill rod by setting a protective cylinder sleeve, thereby protecting the staff, and at the same time, when the cylinder is turned on, the protective cylinder can be controlled to move longitudinally, so that the protection height can be adjusted to improve the protection effect.

The utility model discloses an elevator repair protection device which comprises a protection plate, the protection plate is divided into a left protection plate and a right protection plate, a hinge is arranged between the two protection plates, a hasp is arranged on the surface of the left protection plate, a clamping block is arranged on the surface of the right protection plate, and a clamping groove is formed in the surface of the top end of the clamping block. One end of the hasp is positioned on the inner side of a clamping groove formed in the top end surface of the clamping block; the protective fence has the advantages that the protective fence is convenient for maintenance personnel to fold and carry by arranging the two protective plates and the hinges in a matched manner, the two protective plates are convenient to limit and mount by arranging the clamping blocks and the hasps in a matched manner, and the two supporting side plates are arranged, so that the personnel can unfold the supporting side plates to support the protective plates; through the matching arrangement of the fixing blocks, the threaded columns, the nuts, the threaded rods, the threaded sleeves and the anti-skid feet, personnel can install the protection plate according to different wall surface widths of the elevator doorway; the protection device is relatively large in protection area, multiple in application scenes and good in child protection effect.

The utility model relates to the technical field of water sample detection devices, discloses an implementation detection device for a water sample of an urban landscape river channel, and solves the problems that a floating water sample detection device is very easy to be interfered by external factors during working, so that the device moves around, is very easy to damage and is shortened in service life. The protection assembly comprises a hose, buckles are arranged at the two ends of the hose, an air bag is arranged at one end of each buckle, a buffering cushion is arranged on the outer side of one end of each air bag, the buffering cushions make contact with external objects firstly to protect the air bags, and the situation that the air bags are damaged and leak air, and consequently the protection effect on the floating carrier is lost is prevented; the protection assembly is provided with a plurality of groups of all effects of preventing loss of protection, but the negative effect of reducing the protection area can be brought, so that the protection assembly can move randomly through the arranged hose, the protection area is increased, and the assembly is simple in structure, obvious in action effect and extremely low in cost.

The utility model belongs to the field of tumor radiotherapy racks, particularly relates to a tumor radiotherapy rack, and aims to solve the problems that in the prior art, although radiation protection can be realized through a protective cover in the use process, the protective cover cannot be expanded when radiation protection needs to be carried out on more parts, so that the protective range of the protective cover is limited, and the radiation protection effect is poor. In order to solve the problems that in the prior art, the protection range is small, according to the scheme, the nursing bed comprises a bed body and a protection cover used for protecting the part of a patient, universal wheels facilitating movement of the bed body are fixedly arranged at the four corners of the bottom of the bed body, and a headrest used for containing the head of the patient is placed on one side of the top of the bed body; supporting plates are fixedly arranged on the two sides of the bottom of the bed body, the bottom of the protective cover is slidably connected with the top of the bed body, the protective cover can be expanded through the expansion mechanism, the protective area of a patient is enlarged, medical articles such as treatment tools and drugs can be stored through the storage mechanism, and medical staff can take and use the medical articles conveniently in the treatment process.

The utility model relates to the field of linear cutting machine tools, and discloses a cutting protection device of a linear cutting machine tool, which comprises a fixed frame, a U-shaped baffle is fixedly connected to the upper end of the fixed frame, a protection top plate and a protection side plate are respectively hinged to the upper end and one side opening end of the U-shaped baffle, lock grooves are arranged on two sides of the protection side plate, and lock tongues are inserted in the lock grooves on two sides in a sliding mode. A fixed spring is fixedly connected between the inner wall of the lock groove and the lock tongue, fixed insertion grooves matched with the lock tongue are formed in the inner walls of the two sides of the U-shaped baffle, an observation window is formed in the protective side plate, a cleaning scraper matched with the observation window is rotationally connected to the inner side of the protective side plate, and a rocker for driving the cleaning scraper to swing is rotationally connected to the outer side of the protective side plate. Compared with the prior art, the protective device has the advantages that one side opening of the upper end opening of the U-shaped baffle can be shielded through the protective top plate and the protective side plates, the protective area is greatly increased, internal machined parts can be observed through the observation window, and the observation window can be cleaned through the cleaning scraper.

The utility model discloses an elevator opening safety protection device, which relates to the technical field of building construction, and comprises a wall body, an elevator door is arranged on one side of the wall body, a first isolation plate is arranged on the side wall of the wall body, and the bottom of the first isolation plate is movably connected with a directional roller. When safety protection is carried out on the elevator hole through the protection device, in order to improve the convenience of adjusting and protecting the holes with different widths by the protection frame, the second isolation plate can be pulled according to the specific protection width requirement, and the pulleys slide along the inner walls of the sliding grooves, so that the protection area of the first isolation plate and the second isolation plate is increased, and the safety of the elevator hole is improved. And after the first isolation plate is pulled to the required protection width, the bolt is rotated, and the bolt stretches and retracts along the top of the first isolation plate through the limiting effect of the nut, so that the bolt has the limiting effect on the pulley, and the effect of using stability after the first isolation plate and the second isolation plate are adjusted is achieved.

The utility model discloses a combined waterproof and dustproof angle grinder for engraving, grinding and polishing, which comprises a grinder body and a grinder head, a switch is mounted on the grinder body, a power transmission line with a plug is connected to the rear end of the grinder body, an angle grinding wheel is rotatably mounted on the lower side surface of the grinder head, a waterproof cover is sleeved on the grinder body, and one end of the waterproof cover is a closing ferrule part. The other end part of the waterproof cover is an open part; the closing-up ferrule part of the waterproof cover is further connected with a dust cover in an overturning mode, and when the dust cover is overturned and unfolded, the dust cover is overturned towards the machine head and forms an included angle with the upper surface of the waterproof cover. According to the utility model, the waterproof cover and the dustproof cover form a combined modular assembly and can be assembled and disassembled with the machine body of the angle grinder in a combined manner; water mist or water spray generated in the polishing process is blocked by the waterproof cover, and the technical effects of water resistance and slipping prevention of the machine body of the angle grinder are achieved; dust and chippings generated in the grinding process of the angle grinding wheel are blocked by the dustproof cover and fall in front of the angle grinder, and a carving process worker is effectively protected.

The utility model discloses a novel oil port screw plug which comprises a screw plug body, an outer hexagonal connecting part is arranged at the left side end of the screw plug body, an inner hexagonal connecting hole is formed in the inner side of the outer hexagonal connecting part, an oblique angle is arranged on the outer circumference of the screw plug body, and installation end faces abutting against an external workpiece are distributed on the right side of the screw plug body along the circumference. The right side of the screw plug body is further connected with a flange, the distance between the outermost side end of the flange and the installation end face is L, and L ranges from 0.1 mm to 0.2 mm. The utility model has the advantages of simple structure, low manufacturing cost, convenience in after-sales maintenance and replacement of products, and effective reduction of paint accumulation.

The utility model relates to the technical field of machining centers, and discloses a gantry machining center with a three-shaft-head machine head and a five-shaft-head machine head. The gantry machining center with the three-shaft-head machine head and the five-shaft-head machine head comprises a machining center body. The clamping plate is located at the bottom of the machining center body and used for fixing a workpiece; at the moment, the air pump is pressed downwards, the suction cup descends along with the air pump and is tightly attached to the bottom of the movable groove, meanwhile, the positioning ring located on the upper portion is embedded into the positioning groove, the suction cup is fixed to the current position, the air pump is started, air between the suction cup and the movable groove is pumped out, and the suction cup is tightly adsorbed into the movable groove; and the multiple assemblies are matched with one another, so that the workpieces of different sizes can be rapidly fixed to the workbench, the installation time of workers is shortened, and the installation efficiency is improved.

The invention belongs to the technical field of protective equipment, and discloses a protective umbrella aiming at swarm unmanned aerial vehicle attacks. The first protection surface comprises a first umbrella cap fixedly connected with the umbrella handle, a first sliding block which slides relative to the umbrella handle and a retractable umbrella surface, and the first sliding block slides along the umbrella handle close to or away from the first umbrella surface to realize retraction and release of the umbrella surface; and the retractable umbrella fabric is a multi-layer impact-resistant umbrella fabric. The protective umbrella with the multi-layer impact-resistant umbrella fabric buffers layer by layer, attacks of the swarm unmanned aerial vehicle are effectively resisted, and the safety of operators is guaranteed.

The invention discloses a self-unfolding edge protection mechanism for building construction, which belongs to the technical field of edge protection in the construction process of common buildings or nuclear power buildings and comprises a support forming a protection mechanism main body and a stop lever positioned at the top end of the support. Wherein the bottom end of the support is fixed in a building plane and matched with the stop lever to jointly achieve the protection effect, a buffering mechanism is further arranged on the front face of the support, and the buffering mechanism is used for providing the collision buffering effect and providing unfolding anti-falling protection during collision. According to the self-unfolding type edge protection mechanism for building construction, a mode of combining a rigid structure and a relatively flexible structure is adopted to achieve a better protection effect, and a mode of performing elastic buffering after stress and actively expanding the protection area can be adopted to achieve a better active protection effect; and good collision / extrusion stress reminding can be generated at the same time, electric control equipment does not need to be used, the cost is lower, and the protection effect is higher.

The invention provides a head lateral impact buffering device, and relates to the technical field of buffering devices. The elastic pushing mechanism is installed in the supporting frame assembly. The rotating protection mechanism is installed in the supporting frame assembly and connected with the elastic pushing mechanism. The auxiliary limiting mechanism is installed in the supporting frame assembly. One side of the collision sensing device is connected with the supporting frame assembly; when the collision extrusion rod in the device is collided and extruded, the gas inflatable cushion is inflated and expanded, and the auxiliary buffering effect is achieved; the main baffle is controlled to rotate to the side surface of the head of the driver, so that the damage to the driver caused by splashing of chippings and parts after collision can be effectively reduced; the problems that the side face of the head of a patient is prone to being injured by glass fragments or broken parts after collision, the head of a driver swings correspondingly due to lateral collision of a vehicle, and a buffer protection device is lacked are solved.

The invention discloses a solar lamp capable of realizing multi-shape change, which comprises a lamp post, a protective shell is arranged on the lamp post, a turnover lamp is arranged on the protective shell, a driving mechanism for driving the turnover lamp to turn over is arranged on the protective shell, a movable solar panel and an unfolding track are arranged in the protective shell, and the movable solar panel is connected with the unfolding track. According to the use requirements, the solar panel and the lamp are protected, the service life of the solar lamp is prolonged, the lamp can be unfolded for illumination when used and can be turned downwards to protect the illumination panel when not used, the solar panel can be automatically unfolded in the unfolding process of the lamp, and the solar panel can be in an inclined state after being unfolded and in a vertical state when stored. The protection area is greatly increased, and switching of various using shapes is achieved.

The utility model relates to the technical field of protective fences, and discloses a protective fence with an anti-toppling function, which comprises a protective fence body and two mounting racks used for supporting the protective fence body, each mounting rack comprises a bottom plate, upright posts are welded at the top of each bottom plate, two connecting rods are rotatably connected to one sides, close to each other, of the two upright posts, and the two connecting rods are rotatably connected to the other sides of the two upright posts. The connecting rods are in a Z shape, and the left side and the right side of the protective fence body are rotationally connected with the two connecting rods. According to the protective guard, when an external vehicle is out of control and slightly collides with the protective guard body, the protective guard body can buffer the vehicle under the rotating effect of the connecting rod, the braking distance of the vehicle can be prolonged while the vehicle is braked, and the purpose of reducing damage to the vehicle and the protective guard is achieved; in addition, when collision occurs, the vehicle firstly collides with the surface of the rubber layer of the protection plate, the elasticity of the rubber layer is used for buffering the vehicle, rigid collision is reduced, and the anti-toppling effect is achieved.

The utility model provides a lift type guardrail relates to guardrail technical field, including mounting box and lifting mechanism, mounting box inner side is equipped with the lifting mechanism, lifting mechanism includes lifting subassembly and guardrail subassembly, mounting box inner side is equipped with the lifting subassembly, the guardrail subassembly is equipped with the top end of the lifting subassembly, and the guardrail subassembly is equipped with the guardrail subassembly. Through the arrangement of the lifting mechanism, the telescopic structure formed by the supporting rods can occupy smaller space, and can retract into the mounting box when not in use, so that the mounting is more convenient, the application scene is wider, the telescopic rod formed by the middle rod, the first-stage rod and the second-stage rod can adjust the width of the guardrail assembly, and the practicability is higher. According to the lifting assembly, the lifting handle is arranged in the middle rod, a larger protection area can be achieved by using smaller installation density, when emergency pulling-up is needed or pulling-up is needed in a power-off state, the lifting handle can be pulled up from the guide groove, so that the lifting assembly is pulled up for use, the buffering assembly can have a certain buffering effect on the middle rod, and mechanical damage to the lifting assembly is avoided.

The invention relates to an anti-collision buffer structure, a side brush device and cleaning equipment. A floating disc of the anti-collision buffer structure is arranged below a fixed disc and is not in direct rigid connection with the fixed disc; the touch electronic switch is annular and sleeves the periphery of the floating disc; the elastic pieces are distributed in the circumferential direction of the fixed disc at equal intervals, and the floating disc elastically abuts against the lower surface of the fixed disc through the elastic pieces. The floating disc elastically abuts against the fixed disc, and therefore the floating disc can deflect relative to the fixed disc in the oblique collision process, and the collision coping capacity of the floating disc is all-directional. When the floating disc is collided from any direction, collision force causes deformation of the elastic piece at the corresponding position, the floating disc generates displacement to absorb impact energy, and meanwhile the touch electronic switch detects collision and outputs a collision signal. And after the collision force is relieved, symmetrical elastic force generated by the elastic pieces distributed at equal intervals in the circumferential direction jointly acts to drive the floating disc to reset to the initial state of being centered with the fixed disc, so that rigid collision damage is avoided, and the structural stability is kept.

The utility model discloses a lift car skirting board device which comprises a lift car and a skirting board body, a main body of the skirting board body is a metal back board, the periphery of the metal back board is folded inwards to form a right-angle folded edge, at least two reinforcing ribs are arranged on the inner side of the metal back board, longitudinal reinforcing square pipes are arranged at the two ends of the reinforcing ribs, and the longitudinal reinforcing square pipes are connected with the skirting board body. And the thickness of the longitudinal reinforcing square tube is smaller than that of the right-angle folding edge at the periphery of the metal back plate. The skirting board body is arranged at the lower end of the inner side of an elevator car. Machining technologies such as electric welding and bolt fastening are mainly applied, the structure is simple, and installation and replacement are convenient.

The utility model relates to the technical field of horizontal type liquid storage devices, in particular to a horizontal type liquid storage device which comprises a horizontal type liquid storage device body, two bottom plates are installed on the lower end face of the horizontal type liquid storage device body, the lower end faces of the two bottom plates are both in threaded connection with two threaded supporting feet, two U-shaped bases are fixedly installed on the lower end face of the horizontal type liquid storage device body, and the two U-shaped bases are in threaded connection with the threaded supporting feet. The two walking universal wheels can make contact with the ground in an attached mode through opposite rotation of the rotating rod and the rotating plate, then the four threaded supporting feet are folded, and therefore the walking universal wheels and the auxiliary universal wheels can assist the horizontal liquid storage device to stably and safely move together, the horizontal liquid storage device can be easily moved, and the working efficiency is improved. And two movable clamping columns with elasticity can extend to be clamped into two connecting blocks, so that a transverse plate is fixed, the protection area can be increased through a protection plate and an extension sliding plate, and the protection strength of the horizontal liquid storage device is better.

This application provides a method for manufacturing a display panel, a display panel, and a display device. The display panel includes: an array substrate; an isolation layer located on one side of the array substrate, including a first isolation structure and a second isolation structure; a light-emitting functional layer; a first encapsulation layer, the first encapsulation layer including a first portion located on the side of the light-emitting functional layer opposite to the array substrate and a second portion connected to the first portion and located on the side of the isolation structure opposite to the array substrate; a second encapsulation layer, the second encapsulation layer including a third portion and a fourth portion, the third portion located on a first surface of the first isolation structure, and the fourth portion located on a second surface of the second isolation structure. The third portion and the second portion at least partially overlap in a direction perpendicular to the plane of the array substrate, and a gap exists between the second portion and the third portion in the same direction. This improves the reliability of the encapsulation and enhances the performance of the display panel.

The invention discloses an adjustable anti-splashing welding protection device. The adjustable anti-splashing welding protection device comprises square protection glass and a welding handle connecting module. One side of the square protective glass is arranged at the front end of the welding handle connecting module in a clamped mode through a glass chuck, the welding handle connecting module comprises an angle-adjustable assembly and a welding handle fixing clamping jaw, and the welding handle fixing clamping jaw is used for clamping and fixing a welding handle. The angle-adjustable assembly is formed by connecting a multi-section connecting rod and a plurality of damping rotating shafts in series, the directions of the rotating axes of the adjacent damping rotating shafts are different, and the damping rotating shafts have a self-locking function, so that the square protective glass can be subjected to position and angle adjustment in a three-dimensional space and is kept stable after adjustment. The square protective glass is made of high-temperature-resistant borosilicate glass, and at least one surface of the square protective glass is provided with a plurality of light filtering coatings. The protection device and the welding handle are integrally connected, so that cooperation of protection and operation in the welding operation process is achieved, and the safety and adaptability of welding operation are improved.

The utility model relates to the technical field of liquor brewing, in particular to a liquor factory liquor brewing site insect-proof movable net-shaped protective cover which comprises a first fixing frame and moving assemblies, the moving assemblies are arranged on the front side and the rear side of the first fixing frame, each moving assembly comprises a fixing block, and the fixing blocks are fixedly connected to the front side and the rear side of the first fixing frame. A first groove is formed in the bottom of the fixing block, a first clamping groove is formed in one side of the inner wall of the first groove, a first spring is fixedly connected to the top of the inner wall of the first groove, and a connecting block is slidably connected to the inner wall of the first groove. According to the insect-proof movable net-shaped protective cover for the liquor making site of the liquor factory, by installing the moving assembly, a worker can conveniently move the protective cover to a working area for protection work, meanwhile, universal wheels can be folded and unfolded, a first fixing frame and a second fixing frame can make contact with the ground, and the protective cover is convenient to use. Therefore, all-around protection work can be carried out on the grains, and damage of mosquitoes to the grains can be effectively prevented.

The utility model discloses a comfortable safety helmet which comprises a helmet body, a protective jaw is arranged in the helmet body, a front edge and a tail edge are arranged at the front end and the rear end of the helmet body respectively, side edges are arranged on the two sides of the helmet body and located on the front edge and the tail edge respectively, a plastic ring is fixedly installed in the helmet body, two pairs of cloth sleeves are sleeved on the plastic ring, and the cloth sleeves are sleeved on the front edge and the rear edge respectively. The safety helmet comprises two pairs of cloth covers, the two pairs of cloth covers are connected with first fan-shaped bubbling fiber linings respectively, fan-shaped grooves are formed in the two pairs of first fan-shaped bubbling fiber linings respectively, second fan-shaped bubbling fiber linings are arranged in the two pairs of fan-shaped grooves respectively, and the two pairs of fan-shaped grooves are connected with the two pairs of cloth covers. The first fan-shaped bubbling fiber lining and the second fan-shaped bubbling fiber lining are bent inwards and are in contact with the bubble face lining while making contact with the head of a wearer, the first interval and the second interval are increased, more gaps can be generated between the head and the fan-shaped bubbling fiber lining after the mask is worn, air circulation is facilitated, and the oppressed phenomenon is avoided.

The utility model relates to the technical field of scald pretreatment, and discloses a scald pretreatment device, which comprises two groups of first buffer pads, the two groups of first buffer pads are semi-arc-shaped, and the tops of the two groups of first buffer pads are fixedly provided with fixing pieces; and a wound protection mechanism is mounted between the two groups of fixing pieces. The first supporting frame and the second supporting frame are synchronously stretched outwards, the wound covering area of the device can be effectively enlarged, the bonding layers at the bottoms of the first buffering cushion and the second buffering cushion are bonded to the outer side of the wound, and the scalded wound can be protected through the first supporting frame and the second supporting frame; meanwhile, a wound protection mechanism is matched with filter screen cloth, it is guaranteed that the scalded wound can make normal contact with outside air, bacteria and dust in the air can be filtered out, and the bacteria and dust are prevented from adhering to the scalded wound and infecting the scalded wound.

The utility model discloses an automobile lower shield structure which comprises a keel frame and mounting holes, a plurality of groups of mounting holes are formed in the inner wall of the keel frame at equal intervals, a front blocking beam is mounted at one end of the keel frame, a rear blocking beam is mounted at the other end of the keel frame, telescopic plates are mounted on the outer walls of the two sides of the keel frame, and the telescopic plates are connected with the keel frame. The surface of each telescopic plate is sleeved with a middle sleeve plate, a supporting sleeve plate is installed at the top end of each middle sleeve plate, a rear plate is installed at one end of each supporting sleeve plate, a front plate is installed at the other end of each supporting sleeve plate, and two sets of first electric rods are installed on the outer wall, on one side of each telescopic plate, of the keel frame. According to the automobile lower protective cover structure, convenient auxiliary supporting of the automobile lower protective cover structure on an automobile is achieved, convenient unfolding and supporting of the automobile for movement and convenient adjustable protective supporting of an automobile chassis are facilitated, the protective area of the lower protective cover structure is increased, and the moving convenience and the anti-collision effect of the automobile after the automobile is damaged are improved.

The utility model discloses a selenium drum protection structure and a selenium drum thereof. The selenium drum protection structure comprises a protection cover, a fixing part and a buckling part, the fixing part and the buckling part are respectively fixed at two ends of the protecting cover; the buckling part comprises a buckling ring and a through hole, the buckling ring extends below the protective cover, and the through hole is located between the buckling ring and the protective cover; cover plates extending downwards are arranged on the two sides of the protective cover, and shielding parts are further arranged on the outer sides of the cover plates. The fixing part and the buckling part are arranged, the fixing part is inserted into the clamping groove, and the convex block is inserted into the buckling ring, so that the protecting cover can be stably and accurately mounted on the main body, the connecting stability between the protecting cover and the main body is ensured, and the mounting convenience and the working stability of the selenium drum protecting structure are improved; by arranging the cover plate and the shielding part, the protecting cover can be attached to the opening position of the selenium drum, the protecting area of the protecting cover is effectively increased, and the protecting performance and the working stability of the selenium drum are improved.